#include <u.h>#include <libc.h>#include <mp.h> /* these tests suck but better than nothing... but really should test more values than just 1<<i */ #define MPTOX(_name,_type,_func)  \void \_name(void) \{ \	mpint *m; \	int i, sign, mag; \	_type v, e; \	int fail; \	 \	fail = 0; \	m = mpnew(0); \	for(i = 0; i < 256; i++){ \		sign = i >= 128 ? -1 : 1; \		mag = i % 128; \		itomp(sign, m); \		mpleft(m, mag, m); \		v = _func(m); \		e = 0xcafebabe; USED(e);#define MPTOX_END(_func,_format)  \		if(v != e){ \			fprint(2, "FAIL: _func(%#B): return value: got "_format", expected "_format"\n", m, v, e); \			fail=1; \		} \	} \	mpfree(m); \	if(!fail) \		fprint(2, "_func: passed\n"); \} #define XTOMP(_name,_type,_func)  \void \_name(void) \{ \	mpint *m, *r; \	int i, sign, mag, fail; \	fail = 0; \	m = mpnew(0); \	r = mpnew(0); \	for(i = 0; i < 256; i++){ \		sign = i >= 128 ? -1 : 1; \		mag = i % 128; \		itomp(sign, r); \		mpleft(r, mag, r);#define XTOMP_END(_func,_type,_format)  \		_func(sign * ((_type)1<<mag), m); \		if(mpcmp(r, m) != 0){ \			fprint(2, "FAIL: _func("_format"): return value: got %#B, expected %#B\n", sign * ((_type)1<<mag), m, r); \			fail=1; \		} \	} \	mpfree(m); \	mpfree(r); \	if(!fail) \		fprint(2, "_func: passed\n"); \} MPTOX(test_mptoi, int, mptoi)	if(mag < 31)		e = sign*(1<<mag);	else		e = sign > 0 ? (1<<31)-1 : 1<<31;MPTOX_END(mptoi, "%#x") MPTOX(test_mptoui, uint, mptoui)	if(mag < 32 && sign > 0)		e = 1<<mag;	else		e = sign > 0 ? -1 : 0;MPTOX_END(mptoui, "%#ux")  MPTOX(test_mptov, vlong, mptov)	if(mag < 63)		e = sign*(1LL<<mag);	else		e = sign > 0 ? (1LL<<63)-1 : 1LL<<63;MPTOX_END(mptov, "%#llx") MPTOX(test_mptouv, uvlong, mptouv)	if(mag < 64 && sign > 0)		e = 1LL<<mag;	else		e = sign > 0 ? -1ULL : 0;MPTOX_END(mptouv, "%#llux") XTOMP(test_itomp, int, itomp)	if(mag >= 31) continue;XTOMP_END(vtomp, vlong, "%lld") XTOMP(test_uitomp, uint, uitomp)	if(mag >= 32 || sign < 0) continue;XTOMP_END(uitomp, uint, "%ud") XTOMP(test_vtomp, vlong, vtomp)	if(mag >= 63) continue;XTOMP_END(vtomp, vlong, "%lld") XTOMP(test_uvtomp, uvlong, uvtomp)	if(mag >= 64 || sign < 0) continue;XTOMP_END(uvtomp, vlong, "%lld")  voidconvtests(void){	test_mptoi();	test_mptoui();	test_mptov();	test_mptouv();	test_itomp();	test_uitomp();	test_vtomp();	test_uvtomp();}